A CI/CD developer is responsible for automating the software delivery process. They use Continuous Integration (CI) tools to merge code changes frequently, ensuring they are integrated with the existing codebase without errors. They also use Continuous Delivery/Deployment (CD) tools to automate the release of these changes into the production environment. They ensure code is always in a deployable state, reducing the time to market. They also conduct automated testing to detect and fix bugs early. Their role enhances collaboration among teams, speeds up software development, and maintains high software quality.